[mod_python] undefined symbol: apr_table_compress ??

I've downloaded mod_python 3.2.5b (Beta) and compiled it using

./configure --with-apxs=/usr/sbin/apxs --with-python=/usr/local/bin/python2.3
make
make install

just as the documentation says. But when I add LoadModule... to my
httpd.conf and restart Apache 2.0.46 I get the error message

Cannot load /etc/httpd/modules/mod_python.so into server:
/etc/httpd/modules/mod_python.so: undefined symbol: apr_table_compress

any ideas on how to fix this??

Regards
Martin